Uber is going on a security hiring binge

We now know one area Uber plans to invest in following the closing of its recent $1 billion funding round: security.

The ride-sharing startup plans to boost its security team from a staff of 25 to 100 by the end of 2015, Uber chief security officer Joe Sullivan told the Financial Times on Monday. Sullivan, a former assistant United States attorney who specialized in high tech crimes and hacking, joined Uber in April 2015 after a stint as Facebook’s chief security officer that lasted a little over five years.